MySQL 数据库 varchar 到底可以存多少个汉字，多少个英文呢

Question

如题所述

Answer 1

锁定表,导出数据库并拷贝到slave库
FLUSH TABLES WITH READ LOCK;
mysqldump -uroot -predhat --all-databases --lock-all-tables > my.db
scp my.db slave:/tmp！

Answer 2

however, she had already spoken so lightly